begs a question. the u.s. has actually spoken of the move of chemical weaponry before, but this, officials are saying, is different. tell us why. >> well, it's different because the intelligence information that is coming out, the data, shows moving apparently these weapons or supplies, and they have done that before, but the way they are doing them, it's different, and it's kind of a new activity, i guess you could call it, which might indicate some type of move toward deploying the weapons. it's a little murky, of course, right there. you heard secretary clinton not wanting to get into intelligence issues, as you can imagine, but there is a heightened concern, and that is one of the reasons that when she was asked about it during this brief -- during this presser in prague, she was very, very serious in her response. >> yeah. no. i heard earlier that they tend to keep the chemical -- the chemicals separate from the delivery systems, the rockets, the mortars, and it looks like they are bringing the two together, which is worrying, but the syrian government playing it all down.